Writer:	Paul Mayhew-Archer
Director:	John Stroud
Star:	Finlay Stroud (Ollie),  Emily Joyce (Janet Dawkins),  Geraldine McNulty (Mrs Raven),  Hugh Dennis (Piers),  Lou Hirsch (Arnie),  Lil Roughley (Ella Dawkins),  Tim Wylton (Stanley Dawkins),  Philip Whitchurch (Tyler),  Ardal O'Hanlon (George Sunday/Thermoman)
Recurring Role:	Natasha Kaplinsky (Newsreader)
Guest Star:	Lochlann O'Mearain (Unknown),  Jeanne Mockford (Unknown),  Hannah Waddingham (Miranda),  Peter Gallagher (II) (Large Man),  Scarlett May (Young Janet)

We see Finlay Stroud as Ollie again. He plays the seven year old Ollie in addition to providing baby Ollie's voice. (edit) Although he had a fairly significant role, Philip Whitchurch was uncredited in this episode. (edit)

(To Piers, after his endorsement of smoking.)
Janet: You'll be discredited for this!
Piers: On the contrary, Janet, people have been so impressed by the quality of my research I've had several other offers.
Janet: Who from?
Piers: Alcohol companies, sugary sweet companies, the nuclear power industry. They all say that I'm a doctor in a million. (edit) (After a seven year absence)
George: And how is Ollie?
Janet: He's grown up without a man around, George.
George: Ah.
Janet: So, he's very sensible and mature. (edit) George: The Ultron Council were so cross with Arnie not being married, they gave him a vasectomy.
Janet: Right, and how was that?
Arnie: On Ultron they don't use any anaesthetic.
George: Or knives -- just bricks. (edit)

Arnie has a vasectomy in this episode. (edit) Since Janet is nine years old in 1967, that places her birth in 1958 which should give everyone a guess as to how old Janet would be in 2003. (edit)

George: Is there anything in your past you regret? 'Cause I can change it for you.

This episode can be considered a spoof of the movie trilogy "Back to the Future" in which Marty McFly visits both his hometown's past and future in order to right wrongs. (edit)